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Application filed by Paul Dr Ing Abeles, Ernst BraunbockfiledCriticalPaul Dr Ing Abeles
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Publication of AT148721BpublicationCriticalpatent/AT148721B/en
AT148721D1937-06-091935-10-28
Reinforced concrete hollow beams for buildings, in particular ceilings, and processes for their production.
AT148721B
(en)
Gantry sign for use in e.g. superhighway, has shafts designed as vertical support units and bar designed as horizontal support unit, where shafts and bar are pre-fabricated parts manufactured from ultra-high performance spun concrete
Centrifugal machine for the production of pipe beams, pipes, masts and other hollow bodies made of concrete, mortar or other malleable and hardening compounds.